diff --git a/compiler/frontend.java/src/org/jetbrains/kotlin/synthetic/JavaSyntheticPropertiesScope.kt b/compiler/frontend.java/src/org/jetbrains/kotlin/synthetic/JavaSyntheticPropertiesScope.kt
index 9a36e0c325e..ba73e435f49 100644
--- a/compiler/frontend.java/src/org/jetbrains/kotlin/synthetic/JavaSyntheticPropertiesScope.kt
+++ b/compiler/frontend.java/src/org/jetbrains/kotlin/synthetic/JavaSyntheticPropertiesScope.kt
@@ -24,6 +24,7 @@ import org.jetbrains.kotlin.descriptors.impl.PropertyGetterDescriptorImpl
 import org.jetbrains.kotlin.descriptors.impl.PropertySetterDescriptorImpl
 import org.jetbrains.kotlin.incremental.components.LookupLocation
 import org.jetbrains.kotlin.incremental.components.NoLookupLocation
+import org.jetbrains.kotlin.load.java.JvmAbi
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.resolve.DescriptorUtils
 import org.jetbrains.kotlin.resolve.scopes.DescriptorKindFilter
@@ -39,9 +40,7 @@ import org.jetbrains.kotlin.util.capitalizeDecapitalize.capitalizeFirstWord
 import org.jetbrains.kotlin.util.capitalizeDecapitalize.decapitalizeSmart
 import org.jetbrains.kotlin.utils.Printer
 import org.jetbrains.kotlin.utils.addIfNotNull
-import java.util.ArrayList
-import java.util.HashMap
-import java.util.HashSet
+import java.util.*
 import kotlin.properties.Delegates
 
 interface SyntheticJavaPropertyDescriptor : PropertyDescriptor {
@@ -73,6 +72,8 @@ interface SyntheticJavaPropertyDescriptor : PropertyDescriptor {
             if (methodName.isSpecial()) return null
             val identifier = methodName.getIdentifier()
             if (!identifier.startsWith(prefix)) return null
+            if (identifier.length() == prefix.length()) return null
+            if (identifier[prefix.length()] in 'a'..'z') return null
 
             if (addPrefix != null) {
                 assert(removePrefix)
@@ -218,7 +219,7 @@ class JavaSyntheticPropertiesScope(storageManager: StorageManager) : JetScopeImp
         val result = ArrayList<Name>(3)
         val identifier = propertyName.identifier
 
-        if (identifier.startsWith("is")) {
+        if (JvmAbi.startsWithIsPrefix(identifier)) {
             result.add(propertyName)
         }
 
diff --git a/compiler/testData/diagnostics/tests/syntheticExtensions/javaProperties/IsNaming.kt b/compiler/testData/diagnostics/tests/syntheticExtensions/javaProperties/IsNaming.kt
index 45eb42ecf0a..b2a33047788 100644
--- a/compiler/testData/diagnostics/tests/syntheticExtensions/javaProperties/IsNaming.kt
+++ b/compiler/testData/diagnostics/tests/syntheticExtensions/javaProperties/IsNaming.kt
@@ -6,6 +6,9 @@ fun foo(javaClass: JavaClass) {
     javaClass.<!UNRESOLVED_REFERENCE!>something<!>
     javaClass.<!FUNCTION_CALL_EXPECTED!>isSomethingWrong<!>
     javaClass.<!UNRESOLVED_REFERENCE!>somethingWrong<!>
+
+    javaClass.<!FUNCTION_CALL_EXPECTED!>issueFlag<!>
+    javaClass.<!UNRESOLVED_REFERENCE!>isSueFlag<!>
 }
 
 // FILE: JavaClass.java
@@ -27,4 +30,8 @@ public class JavaClass {
     public int isSomethingWrong() {
         return 1;
     }
+
+    public boolean issueFlag() {
+        return true;
+    }
 }
\ No newline at end of file
diff --git a/compiler/testData/diagnostics/tests/syntheticExtensions/javaProperties/IsNaming.txt b/compiler/testData/diagnostics/tests/syntheticExtensions/javaProperties/IsNaming.txt
index 5f7f48d1f27..c3e7277144c 100644
--- a/compiler/testData/diagnostics/tests/syntheticExtensions/javaProperties/IsNaming.txt
+++ b/compiler/testData/diagnostics/tests/syntheticExtensions/javaProperties/IsNaming.txt
@@ -9,6 +9,7 @@ public open class JavaClass {
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
     public open fun isSomething(): kotlin.Boolean
     public open fun isSomethingWrong(): kotlin.Int
+    public open fun issueFlag(): kotlin.Boolean
     public open fun setIsSomething2(/*0*/ value: kotlin.Boolean): kotlin.Unit
     public open fun setSomething(/*0*/ value: kotlin.Boolean): kotlin.Unit
     public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
diff --git a/core/descriptor.loader.java/src/org/jetbrains/kotlin/load/java/JvmAbi.java b/core/descriptor.loader.java/src/org/jetbrains/kotlin/load/java/JvmAbi.java
index 623cad06a3a..ef0cb96d2c8 100644
--- a/core/descriptor.loader.java/src/org/jetbrains/kotlin/load/java/JvmAbi.java
+++ b/core/descriptor.loader.java/src/org/jetbrains/kotlin/load/java/JvmAbi.java
@@ -90,7 +90,7 @@ public final class JvmAbi {
                : SET_PREFIX + CapitalizeDecapitalizeKt.capitalizeAsciiOnly(propertyName);
     }
 
-    private static boolean startsWithIsPrefix(String name) {
+    public static boolean startsWithIsPrefix(String name) {
         if (!name.startsWith(IS_PREFIX)) return false;
         if (name.length() == IS_PREFIX.length()) return false;
         char c = name.charAt(IS_PREFIX.length());
diff --git a/j2k/testData/fileOrElement/detectProperties/FalseGetter.java b/j2k/testData/fileOrElement/detectProperties/FalseGetter.java
index 5b6024908b9..54721a8d6b2 100644
--- a/j2k/testData/fileOrElement/detectProperties/FalseGetter.java
+++ b/j2k/testData/fileOrElement/detectProperties/FalseGetter.java
@@ -5,4 +5,6 @@ public class AAA {
     public int getX() {
         return other.x;
     }
+
+    public boolean issue() { return true; }
 }
diff --git a/j2k/testData/fileOrElement/detectProperties/FalseGetter.kt b/j2k/testData/fileOrElement/detectProperties/FalseGetter.kt
index 3d247c84c34..3ed4c9937d6 100644
--- a/j2k/testData/fileOrElement/detectProperties/FalseGetter.kt
+++ b/j2k/testData/fileOrElement/detectProperties/FalseGetter.kt
@@ -5,4 +5,8 @@ class AAA {
     fun getX(): Int {
         return other.x
     }
+
+    fun issue(): Boolean {
+        return true
+    }
 }